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...Daniel Webster invented a "bull plow" to pull out tree stumps. It didn't catch on because it was huge and required four oxen to pull it!
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| Number | Title | Issue Date |
| 6996136 | Ultrashort-pulse fiber laser with a dispersion-managed cavity The ultrashort fiber laser with a dispersion-managed cavity. The laser is an actively mode-locked sigma laser, typically locked at a repetition rate of 10 GHz, driven by an external frequency source and actively length stabilized, and nearly 10,000 pulses circulate ... | 02/07/2006 |
| 6411408 | Apparatus and method for high repetition rate optical communication over long unrepeated spans A method and apparatus for increasing the upper frequency range of an optical communication system, particularly one designed to communicate over, repeaterless, distances. A series of temporally interleaved optical solitons of different frequencies are ge... | 06/25/2002 |
| 6122305 | Broadband mode-locked fiber laser, particularly for fiber Bragg grating interrogation In accordance with one aspect of the invention, a ring laser configuration having a polarizer, and whose cavity loop has substantially no net dispersion, permitting mode locked pulsing of high intensity and large bandwidth. In accordance with another aspe... | 09/19/2000 |
| 5999292 | Sagnac interferometer amplitude modulator based demultiplexer This invention is a demultuplexer consisting on a sequential division of the data stream in a series of Sagnac interferometer amplitude modulators (SIAMs), wherein each modulator in the series is driven by a single microwave frequency derived directly fro... | 12/07/1999 |
| 5959753 | Ultra high bit rate all optical communication system A system that uses all optical elements for transmission, regeneration and reception of solitons in point-to-point, broadcast, ring and multi-user trunk type communication systems. Soliton pulses from an optical clock source are modulated by optical data ... | 09/28/1999 |
| 5956171 | Electro-optic modulator and method An optical intensity modulator which uses a Sagnac interferometer having an electro-optic phase modulator therein. An electric modulation signal is delivered to the modulator, and the latter is selected so that the phase velocity of optical and electrical... | 09/21/1999 |
| 5734667 | Polarization-stable laser An optical device includes a polarization section having a port, the polarization section being for receiving light at the port and for outputting light at the port with a state of polarization orthoconjugate to the light received at the port. The polariz... | 03/31/1998 |
| 5574739 | Polarization-stable pulsed laser A pulsed laser includes a polarization section having a port, the polarization section being for receiving light at the port in a selected state of polarization and for outputting light at the port having a state of polarization orthogonal to the selected... | 11/12/1996 |
| 5495366 | Apparatus and method for eliminating polarization sensitivity in transducers An apparatus and method for converting a signal of arbitrary polarization one of preselected polarization, e.g. for use by a sensor, transducer, etc. A signal splitter divides the input signal into its orthogonal linearly polarized components, and launch... | 02/27/1996 |
| 5359612 | High repetition rate, mode locked, figure eight laser with extracavity feedback An optical pulse generator for producing mode-locked optical pulses comprises: a beam splitter; first and second optical loops coupled together by the beam splitter so as to define a figure eight optical path in which a light beam propagating toward the b... | 10/25/1994 |
| 5303314 | Method and apparatus for polarization-maintaining fiber optical amplification with orthogonal polarization output A single-polarization fiber optical amplifier and corresponding method is provided capable of amplifying an optical input signal by a fiber optic amplifier constructed of fiber which may be non-polarization-maintaining. The single-polarization fiber optic... | 04/12/1994 |
